Process for the cryptographic processing of data and cryptograph

Details Process for the cryptographic processing of data and cryptograph Process for the cryptographic processing of data and cryptograph

1990-02-08

1991-05-28

Tarcza, Thomas H.

Cryptography

Key management

Having particular key generator

H04L 900

Patent

active

050201069

ABSTRACT:
In a process for the cryptographic processing of data in a cryptographic system, processing takes place in two parts. In the first part the data transmission routines within a data entity and a coded text entity are detected. The clear text and the cryptographic are separately processed cryptographically in the second part and then recombined in the first part with the data transmission routines.

REFERENCES:
patent: 3627928 (1971-12-01), Wolper et al.
patent: 3868631 (1975-02-01), Morgan et al.
patent: 4434322 (1984-02-01), Ferrell
patent: 4447672 (1984-05-01), Nakamura
patent: 4661657 (1987-04-01), Grenebach et al.
patent: 4760598 (1988-07-01), Ferrell
patent: 4790013 (1988-12-01), Kage
Patent Abstracts of Japan, vol. 10, No. 87, Apr. 5, 1986.
"The New World of the Information Society", Proceeding of the Seventh International Conference on Computer Communication, Oct. 30 to Nov. 2, 1984, from "Chip to Data Networks Security Unit", pp. 854-859.
European Search Report No. RS83573CH.

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